USN-3955-1: tcpflow vulnerabilities

USN-3955-1: tcpflow vulnerabilities

tcpflow vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

tcpflow could be made to crash or expose sensitive information over the network
if it opened a specially crafted file or received specially crafted network
traffic.

Software Description

• tcpflow – TCP flow recorder

Details

It was discovered that tcpflow incorrectly handled certain malformed network
packets. A remote attacker could send these packets to a target system, causing
tcpflow to crash or possibly disclose sensitive information.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10

tcpflow – 1.4.5+repack1-4ubuntu0.18.10.1

tcpflow-nox – 1.4.5+repack1-4ubuntu0.18.10.1

Ubuntu 18.04 LTS

tcpflow – 1.4.5+repack1-4ubuntu0.18.04.1

tcpflow-nox – 1.4.5+repack1-4ubuntu0.18.04.1

Ubuntu 16.04 LTS

tcpflow – 1.4.5+repack1-1ubuntu0.1

tcpflow-nox – 1.4.5+repack1-1ubuntu0.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

• CVE-2018-14938
• CVE-2018-18409

Source: USN-3955-1: tcpflow vulnerabilities